Newbie Q: What is Level?

:?: I am new to tennis and TW. I am looking for my first racquet, and stumbled into the term 'level'. How does that describe a player? What level would I be having gone through an eight-hour beginners' course? 1.0? I was complimented as moving well on the court. Have played several years of badminton and some of squash, so I have some eye for the ball. Of course, my technique for tennis is limited yet. Cheers, henrikk